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EP3310981A1 - Door locking device for locking a vehicle door - Google Patents

Door locking device for locking a vehicle door

Info

Publication number
EP3310981A1
EP3310981A1 EP16812042.6A EP16812042A EP3310981A1 EP 3310981 A1 EP3310981 A1 EP 3310981A1 EP 16812042 A EP16812042 A EP 16812042A EP 3310981 A1 EP3310981 A1 EP 3310981A1
Authority
EP
European Patent Office
Prior art keywords
door
locking device
lever arm
housing
locking
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16812042.6A
Other languages
German (de)
French (fr)
Other versions
EP3310981B1 (en
EP3310981A4 (en
Inventor
Rickard Magnusson
Christer Lang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Scania CV AB
Original Assignee
Scania CV AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Scania CV AB filed Critical Scania CV AB
Publication of EP3310981A1 publication Critical patent/EP3310981A1/en
Publication of EP3310981A4 publication Critical patent/EP3310981A4/en
Application granted granted Critical
Publication of EP3310981B1 publication Critical patent/EP3310981B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/22—Functions related to actuation of locks from the passenger compartment of the vehicle
    • E05B77/24—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/22—Functions related to actuation of locks from the passenger compartment of the vehicle
    • E05B77/24—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like
    • E05B77/28—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like for anti-theft purposes, e.g. double-locking or super-locking
    • E05B77/283—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like for anti-theft purposes, e.g. double-locking or super-locking initiated by hand actuation, e.g. by using a mechanical key
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/22—Functions related to actuation of locks from the passenger compartment of the vehicle
    • E05B77/24—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like
    • E05B77/245—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like by blocking the movement of a movable element
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/22—Functions related to actuation of locks from the passenger compartment of the vehicle
    • E05B77/24—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like
    • E05B77/28—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like for anti-theft purposes, e.g. double-locking or super-locking
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/36—Noise prevention; Anti-rattling means
    • E05B77/38—Cushion elements, elastic guiding elements or holding elements, e.g. for cushioning or damping the impact of the bolt against the striker during closing of the wing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/44—Burglar prevention, e.g. protecting against opening by unauthorised tools
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
    • E05B83/36—Locks for passenger or like doors
    • E05B83/42—Locks for passenger or like doors for large commercial vehicles, e.g. trucks, construction vehicles or vehicles for mass transport
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C1/00—Fastening devices with bolts moving rectilinearly
    • E05C1/08—Fastening devices with bolts moving rectilinearly with latching action
    • E05C1/10—Fastening devices with bolts moving rectilinearly with latching action with operating handle or equivalent member rigid with the latch
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
    • E05C19/10—Hook fastenings; Fastenings in which a link engages a fixed hook-like member
    • E05C19/12—Hook fastenings; Fastenings in which a link engages a fixed hook-like member pivotally mounted around an axis
    • E05C19/14—Hook fastenings; Fastenings in which a link engages a fixed hook-like member pivotally mounted around an axis with toggle action
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C3/00—Fastening devices with bolts moving pivotally or rotatively
    • E05C3/02—Fastening devices with bolts moving pivotally or rotatively without latching action
    • E05C3/04—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J5/00—Doors
    • B60J5/04—Doors arranged at the vehicle sides
    • B60J5/0497—Doors arranged at the vehicle sides for load transporting vehicles or public transport, e.g. lorries, trucks, buses
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B1/00—Knobs or handles for wings; Knobs, handles, or press buttons for locks or latches on wings
    • E05B1/0015—Knobs or handles which do not operate the bolt or lock, e.g. non-movable; Mounting thereof
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00—Locks or fastenings with special structural characteristics
    • E05B63/0004—Additional locks added to existing lock arrangements
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/516—Application of doors, windows, wings or fittings thereof for vehicles for trucks or trailers
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Type of wing
    • E05Y2900/531—Doors

Definitions

  • the present invention relates to a door locking mechanism/- device for manually locking a vehicle door in a closed position and from inside.
  • the invention is preferably intended for safely and easily locking a cab door on a heavy commercial/- industrial vehicle when the driver is going to rest/sleep inside the cab.
  • the invention also covers a vehicle provided with a locking device according to the invention.
  • Doors have for example been strengthened by fitting protective plates to cover the inner components of the lock, but it has still been found difficult to make a really safe door lock. It is important that the driver trust the door lock, and also easily can see that the lock is activated. It is also convenient if the lock is easy to handle, i.e. user- friendly, as well as that the total weight of the lock and the door still is minimized and that the lock will not take up space in the cab compartment .
  • WO 2014/199191 a locking system for use in a vehicle installed inside the door of a truck.
  • This locking system is located on the inside of the door and comprises a locking member movable between an unlocked position and a locked position.
  • the locking system is designed with a receiving portion which is adapted to receive a solid element, e.g. a grab handle, fixed to the cabin frame. In the locked position the locking system retain the handle in the mechanism and the door cannot be opened from outside.
  • This system is large and heavy and will be expensive to manufacture and install and comprises a number of parts that in time may result in malfunction.
  • WO 2007/120040 a system for securing truck doors comprising U-shaped brackets or elements integrated in the door and that are gripping at least partly around a handle installed in the cab frame.
  • the U- shaped bracket is provided with two holes in which a steel pin is inserted in such a way that the handle is anchored within the bracket. In this way the door is secured and cannot be opened from outside.
  • the solution is not user-friendly as it will take some time to manipulate the parts included for locking and unlocking the door.
  • the lock must be easy to handle as in same cases the driver may have to lock himself in or abandon the cab/vehicle urgently.
  • the bracket will also take up some space in the cab compartment . Still another solution is disclosed in US6619708.
  • This patent document describes a door locking system for a vehicle cab having two opposed doors.
  • the locking system includes a pair of links and shoe elements adapted to engage parts of the doors, e.g. handles, in such a way that it makes the doors immovable when the links are put together and tensioned.
  • a toggle bolt assembly is provided between the links to tension them in order to pull the doors together and prevent their opening.
  • One object of the present invention is to solve the above mentioned problems and to propose a simple and fail-safe locking device that is easy to handle and that prevents unauthorized intrusion into the vehicle cab from outside.
  • a further object of the invention is that the system must take up minimal space in the cab and/or in the door panel.
  • a further object of the invention is that the locking device should be easy to build into normal vehicle doors without substantial modifications of door structure or door panel parts .
  • Another object of the invention is to provide a locking device containing as few and light weight components as possible.
  • Another object of the invention is to provide a locking device that can be easily checked if it is activated or inactivated.
  • a further object of the invention is that the system should be mechanically operated without any electric components thereby saving electrical power in the vehicle.
  • a further object of the invention is that the locking device should be fast, accurate and safe to handle.
  • a further object of the invention is that the locking device must not create noise/clutter, neither at maneuvering/- activating the locking device, when driving the vehicle and/or at opening/closing the side doors.
  • a further object of the invention is that the locking device, at least in one embodiment, should be completely folded into the door panel when not activated.
  • the present invention refers to a locking device primarily intended for cab doors of heavy commercial/industrial vehicles and for locking the doors safely from inside the cab.
  • the locking device is, in one embodiment, fully integrated in the door trim panel in the region near a boarding handle, which in turn is installed in the framework of the cab.
  • the locking device is manually pulled/folded out, and manoeuvred to hook around the boarding handle.
  • the locking device is self locking by means of springs and an integrated end stop and having a first and a second lever arm moved to a position around the boarding handle. The movement of the locking device, from its folded position into the door to the locked (activated) position, is made in one combined/consecutive movement .
  • the invention is based on the principle that the locking device is more or less hidden in the door panel until the driver wants to activate it.
  • the driver than puts one or more fingers in a recess/grip in the devices outer second lever arm and pulls.
  • the first and a second lever arm of the device simultaneously folds out in a predetermined manner and the second, outer, lever arm of the device is manually moved to and located around the boarding handle and come to rest against it, due to the fact that both the first and second lever arms are spring biased, striving to fold them into the locking devices inactivated position in the door panel.
  • An end stop arranged in the joint between the first and second lever arm prevents the lever arms from open more than about 90 degrees in relation to each other.
  • the invention facilitates in this way that the user/driver easily may operate and activate the locking device whenever needed.
  • the locking device is always in place in the door and is simply moved/activated by one hand or one finger.
  • a plastic or rubber element located on the outer end of the second, outer, lever arm, and positioned between the lever arm and the boarding handle, minimizes the risk of noise/clatter from the locking device when in use.
  • the system function is not dependent on any battery voltage, air or hydraulic pressure and the locking device prevents unauthorized opening of the cab door from outside. Due to the design the locking device takes up very little space in the cab and in the door .
  • the locking device is preferably manufactured of metal such as steel and the lever arms are arranged to partly rotate around two joints/axles, a first axle is arranged between the housing and the first lever arm and the second joint/axle is arranged between the first and second lever arm.
  • the housing is firmly fixed to the door inner frame work.
  • Figure 1 illustrates a perspective side view, of a
  • Figure 2 illustrates the locking device according to the invention, installed on the inside of the cab door, in the rear part of the trim panel of the door and is shown in its inactivated position.
  • Figure 3 illustrates more in detail, in a perspective view, the activated locking device, here gripping around a boarding handle mounted in the framework of the cab.
  • Figure 4a—c illustrates, in perspective views, three different stages of the movement of the locking device, from the inactivated position to its activated position.
  • Figure 5a-c illustrates principally the same stages as figure 4a-c but from above and partly in cross-section.
  • Figure 6a illustrates in a perspective view the locking device in its folded inactivated position and figure 6b illustrates in a perspective view the locking device in a halfway lifted position .
  • Figure 7 illustrates in a perspective view from another angle, the locking device in a position on the way to hook around the boarding handle .
  • the present invention thus relates to a locking device for locking vehicle doors safely from the inside.
  • the locking device may be fully integrated in the door panel and
  • a boarding handle that in turn is installed in the framework of the cab.
  • Figure 1 illustrates a perspective side view of a truck 1 provided with a drivers cabin 2 having side doors 3.
  • the doors are provided with conventional door locks 4.
  • a further locking device 5 is installed on the inside of the doors (see figure 2) .
  • Figure 2 illustrates the locking device 5 in an inactivated position, according to the invention, installed on the inside of the cab door 3 and recessed in the rear part of the trim panel 6 of the door 3, near the conventional door lock (see figure 1) .
  • the locking device 5 is inserted into the panel 6 by means of a housing 7 mounted to the framework in the door 3 (not shown) . In this way no parts take up space outside the door panel 6 in the cab compartment .
  • the locking device 5 comprises movable locking members a first and a second lever arm 8,9, partly rotatable around joints/axles (see figures 5a- c) .
  • a recess 10 is arranged, into which one or more fingers can be inserted. In this way it will be possible to pull the lever arms out of the housing 7 and the door panel 6.
  • the lever arms 8,9 are spring biased (see figures 5a-c) and is striving to be folded into the housing 7, and into the door panel 6.
  • FIG. 3 illustrates in more detail, and in a perspective view, the activated locking device 5.
  • the lever arms 8,9 have here been pulled out and advanced against a boarding handle 11 and have been located around the boarding handle 11 mounted in the frame work of the cab (not shown) .
  • the lever arms 8,9 of the locking device 5 are spring biased and strive to move back into the housing 7. Of this reason the locking device 5 will maintain its grip around the boarding handle 11. Due to an end stop 12 arranged on the second lever arm 9 the angle between the two lever arms 8,9 can never exceed a predetermined angle, e.g. about 90 degrees in relation to each other. Of this reason it will be impossible to stretch out the lever arms 8,9, releasing the second lever arm 9 from the grip onto the boarding handle 11, without first moving the second lever arm 9 backwards, and the cab door 3 will stay closed.
  • a predetermined angle e.g. about 90 degrees
  • Figure 4a—c illustrates in perspective views three different stages of the movement of the locking device 5, from the inactivated position to the activated position.
  • the locking device 5 is illustrated in its inactivated unlocked position, and the lever arms 8,9 are folded into the housing 7 installed in the door panel 6.
  • the lever arms 8,9 are being pulled out from the housing 7 in a movement towards the boarding handle 11.
  • the locking device 5 has been hooked around the boarding handle 11 preventing the cab door 3 to be opened from outside.
  • Figure 5a-c illustrates the same stages as figure 4a-c but in more detail and in cross-section views.
  • the locking device 5 is shown in its folded inactive position, mainly inside the door panel 6.
  • the driver wants to activate the locking device 5 his finger is inserted into the recess 10 of the second lever arm 9, and the lever arms 8,9 are pulled outwardly.
  • Figure 5b illustrates a second stage in the movement where the lever arms 8,9 are "opened” and folded out in order to pass and surround the boarding handle 11.
  • the first lever arm 8 is partly rotatable connected, at one inner end, by a first joint/hinge 13, to the housing 7 of the locking device 5 and the second lever arm 9 is partly
  • a first spring 15 e.g. a coil spring
  • a second spring 16 is arranged in the second joint/hinge 14 striving to keep the second lever arm 9 against or in level with the first lever arm 8 and/or in the housing 7.
  • the end stop 12 is arranged near the second joint/hinge 14 comprising a heel 18 arranged on the second lever arm 9 abutting a crutch 19 arranged on the first lever arm 8.
  • the first and second lever arm 8,9 could open up to about 100 degrees in relation to each other, but preferable about 90 degrees, restricted by the end stop 12.
  • FIG 5b is illustrated how the second lever arm 9 is folded out to about its most open position, having its largest angle a in relation to the first lever arm 8, as the end stop 12 prevents a larger opening angle a between the two lever arms 8,9. In this way the second lever arm 9 may pass the handle 11 and hook to it, as can be seen in figure 5c.
  • FIG. 6a illustrates in a perspective view the locking device 5 in its folded inactivated position and in figure 6b the locking device 5 is in a somewhat lifted position.
  • the first and second lever arms 8,9 are located on/in a housing 7 which in turn is installed into the doors framework (not shown) .
  • a recess 10 is arranged in the second lever arm 9 .
  • the locking device 5 is half way pulled out from the housing 7 on the way to an activated position.
  • the end stop 12 is arranged between the first and second lever arms 8,9 and the plastic or rubber element 17, for abutting the boarding handle 11 (see figure 7) is illustrated.
  • Figure 7 illustrates in a perspective view, from an angle obliquely from above, the locking device 5 in a position on the way to hook around the boarding handle 11.
  • the second lever arm 9 is just to be positioned around the handle 11.
  • the second lever arm is provided with two legs (8a,b) in order to improve its stability.
  • the locking device according to the invention will be fast and easy to handle by that it requires very few operational steps for maneuvering and unfold the locking lever arms 8,9.
  • the locking device 5 can be controlled with only one hand and the design takes up very little space in its inactivated storage position .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)

Abstract

The invention refers to a door locking device (5) for manually/physically locking a vehicle door (3) from inside a vehicle (1), especially a cab door of a truck, comprising a housing (7) including locking members (8,9) movable between an unlocked position and a locked position. The invention is achieved by that a first lever arm (8) is partly rotatable connected to the housing (7) and a second lever arm (9) is partly rotatable connected to the other end of the first lever arms (8). A first spring (15) is striving to keep the first lever arm (8) onto or in the housing (7) and a second spring (16) is striving to keep the second lever arm (9) against or in level with the first lever arm (8) and/or in the housing (7). The second lever arm (9) is provided with a recess (10) by which the first and second lever arms (8,9) may be pulled out, operated, from their folded position on/in the housing (7) and/or door (3), by the user/driver, and hooked on/around a rigid locking element /handle (11).

Description

Door locking device for locking a vehicle door
TECHNICAL FIELD
The present invention relates to a door locking mechanism/- device for manually locking a vehicle door in a closed position and from inside. The invention is preferably intended for safely and easily locking a cab door on a heavy commercial/- industrial vehicle when the driver is going to rest/sleep inside the cab. The invention also covers a vehicle provided with a locking device according to the invention.
BACKGROUND ART
Many heavy commercial vehicles, such as trucks, are intended for long-distance transportation and the driver may spend several days on the road and needs to rest and sleep in the vehicle. For security reasons the driver of course locks the cabin door when resting/sleeping using the conventional door locking system integrated in the side doors . Many such door locks are, however, possible to manipulate and break, for the initiated person, in such a way that the door can be opened from outside without a key. It has been more and more common that vehicles and drivers are exposed for assault, robbery and hijacking, e.g. when the driver is at sleep and caught off guard. This is a problem in many markets and there is a general desire to reduce/minimize this risk and it is very important that the driver feel safe inside the cab.
Several attempts have been done to make the conventional/- integrated door lock safer but so far this has not really been successful. Doors have for example been strengthened by fitting protective plates to cover the inner components of the lock, but it has still been found difficult to make a really safe door lock. It is important that the driver trust the door lock, and also easily can see that the lock is activated. It is also convenient if the lock is easy to handle, i.e. user- friendly, as well as that the total weight of the lock and the door still is minimized and that the lock will not take up space in the cab compartment .
Many designs have been proposed to provide a simple and user- friendly solution to this problem.
In the patent document WO 2014/199191 is described a locking system for use in a vehicle installed inside the door of a truck. This locking system is located on the inside of the door and comprises a locking member movable between an unlocked position and a locked position. The locking system is designed with a receiving portion which is adapted to receive a solid element, e.g. a grab handle, fixed to the cabin frame. In the locked position the locking system retain the handle in the mechanism and the door cannot be opened from outside. This system is large and heavy and will be expensive to manufacture and install and comprises a number of parts that in time may result in malfunction.
In the patent document WO 2007/120040 is described a system for securing truck doors comprising U-shaped brackets or elements integrated in the door and that are gripping at least partly around a handle installed in the cab frame. The U- shaped bracket is provided with two holes in which a steel pin is inserted in such a way that the handle is anchored within the bracket. In this way the door is secured and cannot be opened from outside. The solution is not user-friendly as it will take some time to manipulate the parts included for locking and unlocking the door. The lock must be easy to handle as in same cases the driver may have to lock himself in or abandon the cab/vehicle urgently. The bracket will also take up some space in the cab compartment . Still another solution is disclosed in US6619708. This patent document describes a door locking system for a vehicle cab having two opposed doors. The locking system includes a pair of links and shoe elements adapted to engage parts of the doors, e.g. handles, in such a way that it makes the doors immovable when the links are put together and tensioned. A toggle bolt assembly is provided between the links to tension them in order to pull the doors together and prevent their opening. This solution is relatively complicated to use and assemble and it comprises several parts not integrated into the vehicle .
Several similar solutions exist in the market but none of these prior known systems are as simple, easy and user- friendly as the present invention. The known systems have a number of disadvantages one of which is that they are designed with a relatively complex mechanism that requires a number of components or need several operational steps in order to use the system.
SUMMARY OF THE INVENTION One object of the present invention is to solve the above mentioned problems and to propose a simple and fail-safe locking device that is easy to handle and that prevents unauthorized intrusion into the vehicle cab from outside. A further object of the invention is that the system must take up minimal space in the cab and/or in the door panel.
A further object of the invention is that the locking device should be easy to build into normal vehicle doors without substantial modifications of door structure or door panel parts . Another object of the invention is to provide a locking device containing as few and light weight components as possible. Another object of the invention is to provide a locking device that can be easily checked if it is activated or inactivated.
A further object of the invention is that the system should be mechanically operated without any electric components thereby saving electrical power in the vehicle.
A further object of the invention is that the locking device should be fast, accurate and safe to handle. A further object of the invention is that the locking device must not create noise/clutter, neither at maneuvering/- activating the locking device, when driving the vehicle and/or at opening/closing the side doors. A further object of the invention is that the locking device, at least in one embodiment, should be completely folded into the door panel when not activated.
These and further objects and advantages is achieved by the invention by a mechanism/device designed in accordance with the features recited in claim 1.
The present invention refers to a locking device primarily intended for cab doors of heavy commercial/industrial vehicles and for locking the doors safely from inside the cab.
The locking device is, in one embodiment, fully integrated in the door trim panel in the region near a boarding handle, which in turn is installed in the framework of the cab. The locking device is manually pulled/folded out, and manoeuvred to hook around the boarding handle. The locking device is self locking by means of springs and an integrated end stop and having a first and a second lever arm moved to a position around the boarding handle. The movement of the locking device, from its folded position into the door to the locked (activated) position, is made in one combined/consecutive movement .
The invention is based on the principle that the locking device is more or less hidden in the door panel until the driver wants to activate it. The driver than puts one or more fingers in a recess/grip in the devices outer second lever arm and pulls. The first and a second lever arm of the device simultaneously folds out in a predetermined manner and the second, outer, lever arm of the device is manually moved to and located around the boarding handle and come to rest against it, due to the fact that both the first and second lever arms are spring biased, striving to fold them into the locking devices inactivated position in the door panel. An end stop arranged in the joint between the first and second lever arm prevents the lever arms from open more than about 90 degrees in relation to each other. This makes it impossible to stretch out the lever arms and release the second lever arm from the grip around the boarding handle, without first moving the second lever arm backward, and the door will therefore stay closed. When the driver wants to inactivate the locking device the driver needs to reverse the movements of the lever arms and fold the two lever arms into their housing in the door panel. After that the door, and its conventional lock, may be operated and the door could be opened in a normal manner .
The invention facilitates in this way that the user/driver easily may operate and activate the locking device whenever needed. The locking device is always in place in the door and is simply moved/activated by one hand or one finger. By using a plastic or rubber element located on the outer end of the second, outer, lever arm, and positioned between the lever arm and the boarding handle, minimizes the risk of noise/clatter from the locking device when in use.
The system function is not dependent on any battery voltage, air or hydraulic pressure and the locking device prevents unauthorized opening of the cab door from outside. Due to the design the locking device takes up very little space in the cab and in the door .
The locking device is preferably manufactured of metal such as steel and the lever arms are arranged to partly rotate around two joints/axles, a first axle is arranged between the housing and the first lever arm and the second joint/axle is arranged between the first and second lever arm. The housing is firmly fixed to the door inner frame work. Further features and advantages of the invention will be apparent from the following, more detailed description of the invention and the accompanying drawings and the claims.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is described below in some preferred embodiments illustrated in the accompanying drawings. Figure 1 illustrates a perspective side view, of a
conventional truck and its cabin provided with side doors.
Figure 2 illustrates the locking device according to the invention, installed on the inside of the cab door, in the rear part of the trim panel of the door and is shown in its inactivated position. Figure 3 illustrates more in detail, in a perspective view, the activated locking device, here gripping around a boarding handle mounted in the framework of the cab.
Figure 4a—c illustrates, in perspective views, three different stages of the movement of the locking device, from the inactivated position to its activated position. Figure 5a-c illustrates principally the same stages as figure 4a-c but from above and partly in cross-section.
Figure 6a illustrates in a perspective view the locking device in its folded inactivated position and figure 6b illustrates in a perspective view the locking device in a halfway lifted position .
Figure 7 illustrates in a perspective view from another angle, the locking device in a position on the way to hook around the boarding handle .
DESCRIPTION OF PREFERRED EMBODIMENTS The present invention thus relates to a locking device for locking vehicle doors safely from the inside. The locking device may be fully integrated in the door panel and
preferable located near a boarding handle that in turn is installed in the framework of the cab.
Figure 1 illustrates a perspective side view of a truck 1 provided with a drivers cabin 2 having side doors 3. The doors are provided with conventional door locks 4. For safety reasons a further locking device 5 is installed on the inside of the doors (see figure 2) . Figure 2 illustrates the locking device 5 in an inactivated position, according to the invention, installed on the inside of the cab door 3 and recessed in the rear part of the trim panel 6 of the door 3, near the conventional door lock (see figure 1) . The locking device 5 is inserted into the panel 6 by means of a housing 7 mounted to the framework in the door 3 (not shown) . In this way no parts take up space outside the door panel 6 in the cab compartment . The locking device 5 comprises movable locking members a first and a second lever arm 8,9, partly rotatable around joints/axles (see figures 5a- c) . In the second lever arm 9 a recess 10 is arranged, into which one or more fingers can be inserted. In this way it will be possible to pull the lever arms out of the housing 7 and the door panel 6. The lever arms 8,9 are spring biased (see figures 5a-c) and is striving to be folded into the housing 7, and into the door panel 6.
Figure 3 illustrates in more detail, and in a perspective view, the activated locking device 5. The lever arms 8,9 have here been pulled out and advanced against a boarding handle 11 and have been located around the boarding handle 11 mounted in the frame work of the cab (not shown) . The lever arms 8,9 of the locking device 5 are spring biased and strive to move back into the housing 7. Of this reason the locking device 5 will maintain its grip around the boarding handle 11. Due to an end stop 12 arranged on the second lever arm 9 the angle between the two lever arms 8,9 can never exceed a predetermined angle, e.g. about 90 degrees in relation to each other. Of this reason it will be impossible to stretch out the lever arms 8,9, releasing the second lever arm 9 from the grip onto the boarding handle 11, without first moving the second lever arm 9 backwards, and the cab door 3 will stay closed.
Figure 4a—c illustrates in perspective views three different stages of the movement of the locking device 5, from the inactivated position to the activated position. In figure 4a the locking device 5 is illustrated in its inactivated unlocked position, and the lever arms 8,9 are folded into the housing 7 installed in the door panel 6. In figure 4b the lever arms 8,9 are being pulled out from the housing 7 in a movement towards the boarding handle 11. In figure 4c the locking device 5 has been hooked around the boarding handle 11 preventing the cab door 3 to be opened from outside.
Figure 5a-c illustrates the same stages as figure 4a-c but in more detail and in cross-section views. I figure 5a the locking device 5 is shown in its folded inactive position, mainly inside the door panel 6. When the driver wants to activate the locking device 5 his finger is inserted into the recess 10 of the second lever arm 9, and the lever arms 8,9 are pulled outwardly. Figure 5b illustrates a second stage in the movement where the lever arms 8,9 are "opened" and folded out in order to pass and surround the boarding handle 11. The first lever arm 8 is partly rotatable connected, at one inner end, by a first joint/hinge 13, to the housing 7 of the locking device 5 and the second lever arm 9 is partly
rotatable connected by a second joint/hinge 14 to the first lever arms 8 outer end. A first spring 15, e.g. a coil spring, is arranged in the first joint/hinge 13 striving to keep the first lever arm 8 against or in the housing 7. A second spring 16 is arranged in the second joint/hinge 14 striving to keep the second lever arm 9 against or in level with the first lever arm 8 and/or in the housing 7.
In this figure also a plastic or rubber element 17 is
illustrated as well as the end stop 12 of the second lever arm 9. The end stop 12 is arranged near the second joint/hinge 14 comprising a heel 18 arranged on the second lever arm 9 abutting a crutch 19 arranged on the first lever arm 8. The first and second lever arm 8,9 could open up to about 100 degrees in relation to each other, but preferable about 90 degrees, restricted by the end stop 12. In the figure 5b is illustrated how the second lever arm 9 is folded out to about its most open position, having its largest angle a in relation to the first lever arm 8, as the end stop 12 prevents a larger opening angle a between the two lever arms 8,9. In this way the second lever arm 9 may pass the handle 11 and hook to it, as can be seen in figure 5c. In this position the second lever arm 9 has a somewhat smaller angle a in relation to the first lever arm 8, due to an angular play β in the end stop 12. In an attempt to break into the cab the door 3 will only open a couple of degrees before the end stop 12 is activated and will stop further opening of the door 3. The springs 15,16 may be coil or torsion springs. Figure 6a illustrates in a perspective view the locking device 5 in its folded inactivated position and in figure 6b the locking device 5 is in a somewhat lifted position. The first and second lever arms 8,9 are located on/in a housing 7 which in turn is installed into the doors framework (not shown) . In the second lever arm 9 a recess 10 is arranged. In figure 6b the locking device 5 is half way pulled out from the housing 7 on the way to an activated position. The end stop 12 is arranged between the first and second lever arms 8,9 and the plastic or rubber element 17, for abutting the boarding handle 11 (see figure 7) is illustrated.
Figure 7 illustrates in a perspective view, from an angle obliquely from above, the locking device 5 in a position on the way to hook around the boarding handle 11. The second lever arm 9 is just to be positioned around the handle 11. The second lever arm is provided with two legs (8a,b) in order to improve its stability.
The locking device according to the invention will be fast and easy to handle by that it requires very few operational steps for maneuvering and unfold the locking lever arms 8,9. The locking device 5 can be controlled with only one hand and the design takes up very little space in its inactivated storage position . The above description is primarily intended to facilitate the understanding of the invention. However the invention is of course not in any way restricted or confined to only the disclosed embodiments, but many possibilities to modifications would be apparent to a person skilled in the art within the scope of the invention without departing from the basic idea of the invention, as defined in the claims set out below.

Claims

1. Door locking device (5) for manually/physically locking a vehicle door (3) from inside, especially a cab door (3) of a commercial vehicle such as a truck, comprising a housing (7) with locking members (8,9) movable between an unlocked position and a locked position,
characterised by
- that a first lever arm (8) is partly rotatable connected, at one end and by a first joint/hinge (13), to the housing (7) and a second lever arm (9) is partly rotatable connected by a second joint/hinge (14) to the first lever arms (8) other end,
- that a first spring (15) is arranged in the first
joint/hinge (13) striving to keep the first lever arm (8) to or in the housing (7),
- that a second spring (16) is arranged in the second
joint/hinge (14) striving to keep the second lever arm (9) against or in level with the first lever arm (8) and/or in the housing (7), and
- that the second lever arm (9) is
- provided with a recess (10) by which the first and second lever arms (8,9) may be pulled out,
- operated, from its folded inactivated position on/in the housing (7) or door (3), by the user/driver,
- and hooked on/around a rigid locking element /handle
(11) in its activated locked position.
2. Door locking device (5) according to claim 1,
characterized in
that the locking element/handle (11) is a boarding handle mounted to the framework of the vehicle.
3. Door locking device (5) according to claim 1 or 2,
characterized in
that the boarding handle (11) is arranged near the door (3) and the locking device (5), making it possible to easily hook the locking device (5) around boarding handle (11) by the locking devices lever arms (8,9) .
4. Door locking device (5) according to any preceding claims, characterized in
that an end stop (12) is arranged between the first and second lever arms (8,9) restricting the possible opening angle (a) between the first and second lever arms (8,9), making it impossible to open the door (3) when the locking device (5) is activated.
5. Door locking device (5) according to any preceding claims, characterized in
that the end stop (12) is arranged at the second joint/hinge (14) comprising a heel (18) arranged on the second lever arm (9) abutting a crutch (19) arranged on the first lever arm (8) .
6. Door locking device (5) according to any preceding claims, characterized in
the housing (7) is arranged in the vehicle door (3),
preferably recessed into the door panel (6) .
7. Door locking device (5) according to any preceding claims, characterized in
that the lever arms (8,9) are fully visible installed in the door (3), both in their unlocked as well as in the locked position, resulting in that it is easy to check if the locking device (5) is activated or inactivated.
8. Door locking device (5) according to any preceding claims, characterized in
that the springs (15,16) are coil springs.
9. Door locking mechanism/device according to the claims 1-7, characterized in that the springs (15,16) are torsion springs.
10. Door locking device (5) according to any preceding claims, characterized in
that a plastic or rubber element (17) is arranged on the second lever arm (9) for improving the grip to the rigid locking element /handle (11) and reducing possible noise from the locking device (5) when used.
11. Door locking device (5) according to any preceding claims, characterized in
that the first lever arm (8) is arranged with two legs (8a,b) .
12. Door locking device (5) according to any preceding claims 1-6 or 8-11,
characterized in
that the first lever arm (8) is hidden behind the second lever arm (9) when the locking device (5) is inactivated and folded into the door (3) .
13. Door locking device (5) according to any preceding claims, characterized in
that the first and second lever arms (8,9) could open about 100 degrees in relation to each other, but preferable about 90 degrees, restricted by the end stop (12) .
14. Vehicle (1) provided with a locking device (5) according to any of the claims 1-13.
EP16812042.6A 2015-06-17 2016-06-02 Door locking device for locking a vehicle door Active EP3310981B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1550834A SE538952C2 (en) 2015-06-17 2015-06-17 Door locking device for locking a vehicle door
PCT/SE2016/050519 WO2016204674A1 (en) 2015-06-17 2016-06-02 Door locking device for locking a vehicle door

Publications (3)

Publication Number Publication Date
EP3310981A1 true EP3310981A1 (en) 2018-04-25
EP3310981A4 EP3310981A4 (en) 2019-01-23
EP3310981B1 EP3310981B1 (en) 2020-04-01

Family

ID=57546170

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16812042.6A Active EP3310981B1 (en) 2015-06-17 2016-06-02 Door locking device for locking a vehicle door

Country Status (8)

Country Link
US (1) US11015374B2 (en)
EP (1) EP3310981B1 (en)
KR (1) KR102024285B1 (en)
CN (1) CN107532438B (en)
BR (1) BR112017020756B1 (en)
RU (1) RU2667226C1 (en)
SE (1) SE538952C2 (en)
WO (1) WO2016204674A1 (en)

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Also Published As

Publication number Publication date
KR102024285B1 (en) 2019-09-23
US20180058109A1 (en) 2018-03-01
US11015374B2 (en) 2021-05-25
BR112017020756A2 (en) 2018-06-26
CN107532438B (en) 2020-06-23
BR112017020756B1 (en) 2022-10-11
RU2667226C1 (en) 2018-09-17
KR20180016536A (en) 2018-02-14
SE538952C2 (en) 2017-02-28
EP3310981B1 (en) 2020-04-01
EP3310981A4 (en) 2019-01-23
SE1550834A1 (en) 2016-12-18
WO2016204674A1 (en) 2016-12-22
CN107532438A (en) 2018-01-02

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